US4197346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained pressure-sensitive record material and process of preparation
Assignee: WTA Inc
•
Filing: 1978-10-10
•
Granted: 1980-04-08
•
Expires: 1998-10-10
Abstract
Abstract A self-contained pressure-sensitive record material comprising a substrate and a coating thereon of an interspersed mixture of pressure-rupturable capsules of an oily solvent solution of a substantially colorless basic chromogenic material and capsules of solid co-reactant acidic resin particles, said co-reactant acidic resin being capable of producing a color upon contact with the chromogenic material. The capsule mixture is applied to the substrate in a single coating step, resulting in a greater production efficiency. The resulting record material provides better imaging characteristics with less print bleed than self-contained systems known in the prior art.
Inventors
- 👤 Michael F. Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:21
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/1246; B41M5/165; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2989
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
126 words
A self-contained pressure-sensitive record sheet material which comprises: (a) a substrate and (b) a coating on at least one surface of the substrate comprising a single layer of interspersed i. color-forming pressure-rupturable capsules of an oily solvent solution of at least one substantially colorless chromogenic compound and ii. capsules of solid acidic co-reactant resin particles substantially free of a liquid component, said co-reactant resin being capable of producing a color upon contact with said chromogenic compound, the capsule walls being materials selected from the group consisting of water soluble polymers formed by coacervation, urea-formaldehyde polymers formed by polymerization and melamine-formaldehyde polymers formed by polymerization; provided that when said capsules of chromogenic compound are produced by coacervation, said capsules of co-reactant resin are produced by melamine-formaldehyde polymerization.
Claim 2
Dependent Claim
126 words
A self-contained pressure-sensitive record sheet material which comprises: (a) a substrate and (b) a coating on at least one surface of the substrate comprising a single layer of interspersed i. color-forming pressure-rupturable capsules of an oily solvent solution of at least one substantially colorless chromogenic compound and ii. capsules of solid acidic co-reactant resin particles substantially free of a liquid component, said co-reactant resin being capable of producing a color upon contact with said chromogenic compound, the capsule walls being materials selected from the group consisting of water soluble polymers formed by coacervation, urea-formaldehyde polymers formed by polymerization and melamine-formaldehyde polymers formed by polymerization; provided that when said capsules of chromogenic compound are produced by coacervation, said capsules of co-reactant resin are produced by melamine-formaldehyde polymerization.
Claim 3
Dependent Claim
22 words
The pressure-sensitive record sheet material of claim 1, wherein the capsules of solid acidic co-reactant resin particles are produced by melamine-formaldehyde polymerization.
Claim 4
Dependent Claim
19 words
The pressure-sensitive record sheet material of claim 1, wherein the capsules of chromogenic compound are produced by melamine-formaldehyde polymerization.
Claim 5
Dependent Claim
27 words
The pressure-sensitive record sheet material of claim 1, wherein the capsules of chromogenic compound and the capsules of co-reactant resin particles are both produced by melamine-formaldehyde polymerization.
Claim 6
Dependent Claim
13 words
The pressure-sensitive record sheet material of claim 1, wherein the substrate is paper.
Claim 7
Dependent Claim
23 words
The pressure-sensitive record sheet material of claim 1, wherein the solid co-reactant resin particles comprise a metal salt of a phenol-formaldehyde novolak resin.
Claim 8
Dependent Claim
17 words
The pressure-sensitive record sheet material of claim 6, wherein the co-reactant resin is a zinc-modified, para-octylphenolformaldehyde resin.
Claim 9
Dependent Claim
16 words
The pressure-sensitive record sheet material of claim 1, wherein the chromogenic compound comprises Crystal Violet Lactone.
Claim 10
Dependent Claim
18 words
The pressure-sensitive record sheet material of claim 1, wherein the chromogenic compound comprises Crystal Violet Lactone and 2'-anilino-6'-diethylamino-3'-methylfluoran.
Claim 11
Dependent Claim
20 words
The pressure-sensitive record sheet material of claim 1, wherein the chromogenic compound comprises Crystal Violet Lactone, 2'-anilino-6'-diethylamino-3'-methylfluoran and Indolyl Red.
Claim 12
Dependent Claim
18 words
The pressure-sensitive record sheet material of claim 1, wherein the capsules of solid co-reactant resin particles comprise gelatin.
Claim 13
Dependent Claim
16 words
A manifold assembly comprising a plurality of self-contained pressure-sensitive record sheets as defined in claim 1.
Claim 14
Dependent Claim
106 words
A color-producing coating composition which comprises: (i) an aqueous dispersion of pressure-rupturable capsules of an oily solvent solution of at least one substantially colorless chromogenic compound and (ii) capsules of solid acidic co-reactant resin particles substantially free of a liquid component, said co-reactant resin being capable of producing a color upon contact with said chromogenic compound, the capsule walls being materials selected from the group consisting of water soluble polymers formed by coacervation, urea-formaldehyde polymers formed by polymerization and melamine-formaldehyde polymers formed by polymerization; provided that when said capsules of chromogenic compound are produced by coacervation, said capsules of co-reactant resin are produced by melamine-formaldehyde polymerization.
Claim 15
Dependent Claim
106 words
A color-producing coating composition which comprises: (i) an aqueous dispersion of pressure-rupturable capsules of an oily solvent solution of at least one substantially colorless chromogenic compound and (ii) capsules of solid acidic co-reactant resin particles substantially free of a liquid component, said co-reactant resin being capable of producing a color upon contact with said chromogenic compound, the capsule walls being materials selected from the group consisting of water soluble polymers formed by coacervation, urea-formaldehyde polymers formed by polymerization and melamine-formaldehyde polymers formed by polymerization; provided that when said capsules of chromogenic compound are produced by coacervation, said capsules of co-reactant resin are produced by melamine-formaldehyde polymerization.
Claim 16
Dependent Claim
21 words
The color-producing coating composition of claim 13, wherein the capsules of solid acidic co-reactant resin particles are produced by melamine-formaldehyde polymerization.
Claim 17
Dependent Claim
18 words
The color-producing coating composition of claim 13, wherein the capsules of chromogenic compound are produced by melamine-formaldehyde polymerization.
Claim 18
Dependent Claim
26 words
The color-producing coating composition of claim 13, wherein the capsules of chromogenic compound and the capsules of co-reactant resin particles are both produced by melamine-formaldehyde polymerization.
Claim 19
Dependent Claim
22 words
The color-producing coating composition of claim 13, wherein the solid co-reactant resin particles comprise a metal salt of a phenol-formaldehyde novolak resin.
Claim 20
Dependent Claim
16 words
The color-producing coating composition of claim 17, wherein the co-reactant resin is a zinc-modified, para-octylphenol-formaldehyde resin.
Claim 21
Dependent Claim
15 words
The color-producing coating composition of claim 13, wherein the chromogenic compound comprises Crystal Violet Lactone.
Claim 22
Dependent Claim
17 words
The color-producing coating composition of claim 13, wherein the chromogenic compound comprises Crystal Violet Lactone and 2'-anilino-6'-diethylamino-3'-methylfluoran.
Claim 23
Dependent Claim
19 words
The color-producing coating composition of claim 13, wherein the chromogenic compound comprises Crystal Violet Lactone, 2'-anilino-6'-diethylamino-3'-methylfluoran and Indolyl Red.
Claim 24
Dependent Claim
17 words
The color-producing coating composition of claim 13, wherein the capsules of solid co-reactant resin particles comprise gelatin.
Claim 25
Dependent Claim
50 words
A process for producing a self-contained pressure-sensitive record sheet material which comprises applying the color-producing coating composition of claim 13 in a single pass through a coating means to at least one surface of a substrate sheet, and drying the resultant coating in a single pass through a drying means.
Claim 26
Dependent Claim
10 words
The process of claim 23, wherein the substrate is paper.
Claim 27
Dependent Claim
49 words
Minute capsules of solid particles of an oil-soluble metal salt of a phenol-formaldehyde novolak resin substantially free of a liquid component, the capsule walls being materials selected from the group consisting of water soluble polymers formed by coacervation, urea-formaldehyde polymers formed by polymerization and melamine-formaldehyde polymers formed by polymerization.
Claim 28
Dependent Claim
49 words
Minute capsules of solid particles of an oil-soluble metal salt of a phenol-formaldehyde novolak resin substantially free of a liquid component, the capsule walls being materials selected from the group consisting of water soluble polymers formed by coacervation, urea-formaldehyde polymers formed by polymerization and melamine-formaldehyde polymers formed by polymerization.
Claim 29
Dependent Claim
13 words
The capsules of claim 25, wherein the resin is a zinc-modified para-octylphenol-formaldehyde resin.
References Cited (Backward Citations)
US2929736A
Cited
US3516845A
Cited
US3625736A
Cited
US3576660A
Cited
US3723156A
Cited
US3936573A
Cited
US3901986A
Cited
US4100103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-08 | 1983-10-08 | 1984-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-08 | 1987-10-08 | 1988-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-08 | 1991-10-08 | 1992-04-08 | $7700.00 | Window Closed / Lapsed |